System level vectoring came closer to becoming a commercial reality at Broadband World Forum this week as a number of key vendors shared new developments.
Adtran on Wednesday announced that it has added system level vectoring to its portfolio of broadband platforms, including the multi-service access nodes (MSANs) it gained through its acquisition of Nokia Siemens Networks' fixed broadband access assets earlier this year.
The announcement marked ″the first demonstration of being able to collaborate between our Huntsville [Alabama, U.S.] engineering teams and our German engineering teams,″ Adtran vice president of global marketing Gary Bolton told Total Telecom.
A total of 340 employees joined Adtran from Nokia Siemens Networks, 250 of whom are Germany-based R&D engineers, he explained.
Vectoring enables operators to provide high-speed broadband services over their copper networks by eliminating crosstalk, or noise interference. Board level vectoring can eliminate crosstalk from copper pairs within the same binder, but the more sophisticated system-level vectoring will work across pairs in different binders or different DSLAMs.
Field trials of the technology will take place immediately, but it will be mid-2013 before commercial chipsets are available in high volumes, Bolton said. ″It's just not scalable with the current chipsets,″ he said.
However, also on Wednesday Chinese rival ZTE said its system-level vectoring solution is ready for commercial rollout; specifically, the vendor said it has released a commercial version of its MSAN systems using system-level VDSL2 vectoring technology.
The equipment supports up to 192 VDSL 2 pairs and will be upgradable to 384 pairs, ZTE said.
However, it did not provide any further details of potential deployments or operator partners.
Alcatel-Lucent is willing to share more details of its work with operators though.
Earlier this week the Franco-U.S. vendor revealed that it is conducting a trial of VDSL2 vectoring with Denmark's TDC.
″Adding Alcatel-Lucent's VDSL2 vectoring solution to our toolkit could enable us to satisfy our customers' broadband needs for years to come, and allow TDC to contribute significantly to the timely realization of Denmark's digital agenda,″ said Jess Juhlin Ibsen, CTO of TDC Group, in a statement.
Regulators in Denmark have yet to give the go-ahead for vectoring though.
Alcatel-Lucent is working with a number of service providers, including Belgacom, Telecom Italia and P&T Luxembourg on potential vectoring deployments. The telcos themselves spoke out about their plans at a breakfast meeting organised by Alcatel-Lucent at BBWF on Wednesday.
More details about that, including likely rollout timelines, will appear on Total Telecom in due course.